code: def test_pandoc_utf8_in_nb(
      nb=new_notebook(
          cells=[
              new_markdown_cell(
                  """# Utf-8 support
  
  This is the greek letter $\\pi$: π"""
              )
          ]
      ),
  ):
      markdown = jupytext.writes(nb, "md:pandoc")
      nb2 = jupytext.reads(markdown, "md:pandoc")
      nb2.metadata.pop("jupytext")
      compare_notebooks(nb, nb2, "md:pandoc")
  
file_path: jupytext/tests/external/simple_external_notebooks/test_read_simple_pandoc.py
imports: import pytest
  from nbformat.v4.nbbase import new_markdown_cell, new_notebook
  import jupytext
  from jupytext.cli import jupytext
  from jupytext.compare import compare, compare_notebooks
  from jupytext.pandoc import PandocError
label_desc: Use image node_id 4 for calling a global function with example usage: test_pandoc_utf8_in_nb(nb) without return types